SB20261023230 - Improper control of a resource through its lifetime in Linux kernel usb core driver

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Main Vulnerability Database SB20261023230

SB20261023230 - Improper control of a resource through its lifetime in Linux kernel usb core driver

Published: October 23, 2026

Security Bulletin ID SB20261023230
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-98933)

CWE-ID: CWE-664 - Improper control of a resource through its lifetime

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a local user to cause a denial of service on affected AMD platforms.

The vulnerability exists due to excessive retention of a runtime power-management reference in the Linux kernel USB3 root hub handling code when resuming a hub on affected AMD platforms. A local user can repeatedly trigger USB subsystem wakeups to cause system crashes because the reference remains held for 200 milliseconds after each resume.


Remediation

Install update from vendor's website.

References